TDA8295C2 datasheet(3/83 Pages) NXP

Numer części	TDA8295C2

Szczegółowy opis	Digital global standard low IF demodulator for analog TV and FM radio

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TDA8295_C2_2

Product data sheet

Rev. 02 — 27 November 2009

3 of 83

NXP Semiconductors

TDA8295

Digital global standard low IF demodulator for analog TV and FM radio

4.

Quick reference data

Table 1.

Quick reference data

Power supplies 3.3 V, 1.2 V; Tamb = 25 °C; PC / SC1 for L and M = 10 dB, all others 13 dB; residual picture carrier for L = 3 %,

all others 10 %; FM/AM modulation = 54 %, 1 kHz modulation frequency; measured in application PCB (see Figure 15) with

16 MHz crystal frequency, loaded with 75

Ω (CVBS) and 1 kΩ (SSIF/audio). Values are meant for ‘easy programming’

settings (recommended) except internal mono audio and IF demodulation. The low IF spectrum is delivered by a professional

downconverter.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Power supply

VDD(1V2)

supply voltage (1.2 V)

digital and analog

1.08

1.2

1.32

V

VDD(3V3)

supply voltage (3.3 V)

digital and analog

2.97

3.3

3.63

V

IDD(tot)(1V2)

total supply current (1.2 V)

-

28

33

mA

IDD(tot)(3V3)

total supply current (3.3 V)

[1] -

168

179

mA

Ptot

total power dissipation

default settings; 75

Ω drive;

fs = 54 MHz at ADC; including DAC

loads; RRSET = 1 kΩ

[1] -

575

631

mW

Power-save mode; fs = 54 MHz at

ADC; including DAC loads;

RRSET = 2 kΩ; see Section 13.6

[2] -

465

510

mW

Standby mode

-

7

10

mW

IF input

Vi(p-p)

peak-to-peak input voltage for full-scale ADC input (0 dBFS)

1.8

2.0

2.2

V

Vi

input voltage

operational input related to ADC full

scale; all standards; sum of all signals

−3

dBFS

fi

input frequency

PC / SC1

M/N standard

-

5.75 / 1.25 -

MHz

B standard

-

6.75 / 1.25 -

MHz

G/H standard

-

7.75 / 2.25 -

MHz

I standard

-

7.75 / 1.75 -

MHz

DK and L standard

-

7.75 / 1.25 -

MHz

L-accent standard

-

1.25 / 7.75 -

MHz

FM radio

-

1.25

-

MHz

Carrier recovery FPLL

B−3dB(cl)

closed-loop

−3 dB

bandwidth

wide

60

kHz

Δf

pullin

pull-in frequency range

see Figure 11

[3] -

±830

-

kHz

mover(PC)

picture carrier

overmodulation index

black for L/L-accent standard; flat field

white else

115

117

-

%

IF demodulation (video equalizer in Flat mode)

α

sup(stpb)

stop-band suppression

video low-pass filter (M/N, B/G/H, I,

D/K, L/L-accent standard)

-

−60

-

dB

tripple(GDE)

group delay equalizer

ripple time

peak value for B/G/H half, D/K half,

I flat, M (FCC) full, L/L-accent full

standard

-

20

40

ns

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